A DHCP server provides an address from a defined address range to a client on the network, when requested.
You can configure one or more DHCP servers on any FortiGate interface. A DHCP server dynamically assigns IP addresses to hosts on the network connected to the interface. The host computers must be configured to obtain their IP addresses using DHCP.
You can configure a FortiGate interface as a DHCP relay. The interface forwards DHCP requests from DHCP clients to an external DHCP server and returns the responses to the DHCP clients. The DHCP server must have appropriate routing so that its response packets to the DHCP clients arrive at the unit.
For more information about options, see:
Configure DHCP on the FortiGate
To add a DHCP server on the GUI:
- Go to Network > Interfaces.
- Edit an interface.
- Enable the DHCP Server option and configure the settings.
To add a DHCP server on the CLI:
config system dhcp server edit 1 set dns-service default set default-gateway 192.168.1.2 set netmask 255.255.255.0 set interface "port1" config ip-range edit 1 set start-ip 192.168.1.1 set end-ip 192.168.1.1 next edit 2 set start-ip 192.168.1.3 set end-ip 192.168.1.254 next end set timezone-option default set tftp-server "172.16.1.2" next end